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RDM vs SDM Which mast fits which sail? This question always comes up when buying a new sail The following information will help you to find the right mast for your sail. RDM, Reduced Diameter Mast, also called skinny mast, indicates masts which have a reduced diameter (33 mm inner diameter of the base) and a nearly uniform profile from base to top.
SDM means Standard Diameter Mast and indicates masts with a standard diameter (48,5 mm inner diameter of the base) and a conical shape running from base to top.
RDM masts carry several advantages: ► Higher impact resistance due to higher wall thickness and reduced mast diameter ► Easier rigging, the skinny mast glides easier into the mast sleeve ► Better handling for waterstarts or in manoeuvres where you grab the mast ► In general an often lighter feeling although RDM masts are often heavier At “Best Mast” you can see for each sail, if you can use beside a SDM also a RDM. The wave sails Blow, Steel and Transwave as well as the crossover sails Torro and Beat can be unrestrictedly used with RDM. Meanwhile, the majority of our clients opt for an RDM. The use of RDM with our camless flatwater sails Future and Rapid can only be recommend restrictedly. For further details, please have a look at the relevant sail pages. The RDM is not suitable for a use with the camber sails Sunray and Vector. These sail lines are designed exclusively for standard diameter masts and get their best performance with them. The GS-R can only be used in the smaller sizes 5,0 and 5,6 sqm with a RDM.
UNIVERSAL TOP FITTING
Our masts are equipped with a universal top fitting. In this way, all of our masts can be used in sails of other brands which use a male pin system instead of a female top cap.
MASTS
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